81971218

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:967

約数の個数: 48

約数和(自身を含む): 153062784

約数和(自身を除く): 71091566

約数列:

[1, 2, 7, 14, 23, 41, 46, 49, 82, 98, 161, 287, 322, 574, 887, 943, 1127, 1774, 1886, 2009, 2254, 4018, 6209, 6601, 12418, 13202, 20401, 36367, 40802, 43463, 46207, 72734, 86926, 92414, 142807, 254569, 285614, 509138, 836441, 999649, 1672882, 1781983, 1999298, 3563966, 5855087, 11710174, 40985609, 81971218]

約数ペア:

[(1, 81971218), (2, 40985609), (7, 11710174), (14, 5855087), (23, 3563966), (41, 1999298), (46, 1781983), (49, 1672882), (82, 999649), (98, 836441), (161, 509138), (287, 285614), (322, 254569), (574, 142807), (887, 92414), (943, 86926), (1127, 72734), (1774, 46207), (1886, 43463), (2009, 40802), (2254, 36367), (4018, 20401), (6209, 13202), (6601, 12418)]